Multi-step anodization of nanoporous TiO₂ from electropolished titanium foil

Authors

Adriel P. Robles Department of Mining, Metallurgical and Materials Engineering, University of the Philippines Diliman
Marconie B. Mamauag Department of Mining, Metallurgical and Materials Engineering, University of the Philippines Diliman
Renato A. Daclan National Institute of Physics, University of the Philippines Diliman
Alberto V. Amorsolo Department of Mining, Metallurgical and Materials Engineering, University of the Philippines Diliman
Roland V. Sarmago National Institute of Physics, University of the Philippines Diliman
Armando S. Somintac National Institute of Physics, University of the Philippines Diliman

Abstract

The present study reveals the development of titanium oxide (TiO₂) nanoporous array by two-step anodization of Ti foil in ethylene glycol solution containing NH4F (0.3 wt%) and H₂O (1.0 wt%). The influence of electropolishing and anodization steps on the surface of the Ti substrate was investigated in producing defined and uniform nanoporous structure. SEM micrographs confirm the pore size, growth, and uniformity of the formed TiO₂ nanopores. An AFM image shows a well defined hexagonal concave structure which acts as nucleation site for uniform growth TiO₂ nanoporous array prior final anodization step. Crystal structure of the form TiO₂ layers were investigated using XRD analysis.

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Issue

2010: Proceedings of the 28th Samahang Pisika ng Pilipinas Physics Congress

Article ID

SPP-2010-PA-56

Section

Poster Session PA

Published

2010-10-25

How to Cite

[1]

AP Robles, MB Mamauag, RA Daclan, AV Amorsolo, RV Sarmago, and AS Somintac, Multi-step anodization of nanoporous TiO2 from electropolished titanium foil, Proceedings of the Samahang Pisika ng Pilipinas 28, SPP-2010-PA-56 (2010). URL: https://proceedings.spp-online.org/article/view/SPP-2010-PA-56.